Dyeing-machine



(No Model.) 2 Sheets-Sheet 2.-

A. N. DUBOIS, DYEING MACHINE.

No, 293.856, Patented Feb. 19, 1884.

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to be attached to chains N, for the purpose of lowering the machine into position upon the UNITED STATES PATENT OFFICE.

ALEXANDRE N DUBOIS, OF PHILADELPHIA, PENNSYLVANIA. v

DYEING-MACHIN'E.

SPECIFICATION formingpart of Letters Patent No. 293,856, dated February 19, 1884.

Application filed November 28, 1883. (No model.)

To all whom it may concern.-

Be it known that I, ALEXANDRE N. DUBoIs, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Dyeing- Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in machines for dyeing yarns; and it consists in the combination of the tub for holding the dyeing compound, a supporting-frame, a series of angular rolls, and a mechanism for causing them to revolve,with a lower swinging frame provided with a series of rollers, and a mechanism for causing the frame to swing back and forth, as will be more fully described hereinafter.v

The object of my invention is to provide a machine by means of which yarn can be made to constantly move back and forth through the dyeing-bath without the trouble of having to move it by manual labor.

Figure 1 is a side elevation of. a machine embodying my invention. Fig. 2 is a similar view of the tub, partly in section, showing the machine in position. Fig. 3 is a plan view of the machine complete. Figs. 4, 5, and 6 are enlarged detail views.

A represents a supporting-frame, upon which are journaled a suitable number ofan gular rollers, a, and which frame is adapted top of the tub '13, or raising it up away from the tub, and loweringit upon thesupportingtrestles 0 when the yarn is applied to or removed from the rollers. These rollers a are made angular, so that when made to revolve they will keep the yarn constantly moving endwise and passing down into and up out of the bath. Upon the end of each roller-journal, at one end of the rollers, is placed a suitable sprocket-wheel, P, and around these wheels is passed the chain D, for the purpose of causing the rollers to revolve. This chain is made endless, and a suitable tension is kept upon it by means of the wheel E, which has its journal placed in a vertically-adjustable slide, which is placed in a slot in the side of the tub B. This slide is adjusted and held in any desired position by means of a set-screw, or any other device that maybe preferred for the purpose. When the frames of rollers are to be removed from the tub, this chain must first be taken off of the'wheels, as the wheel E remains permanently attached to the tub. Each of the rollers a is made removable from the frame A, for the purpose of placing the yarn upon and removing it from the rollers. At the ends of the rollers to which the sprocket-wheels are secured the journals Q, are made long enough to extend out past the-frame A, and then they are locked rigidly in place by means of the slide R,(shown in Fig. 6,) which is passed endwise through the keepers or staples S. When the yarn is to be placed upon or removed from the rollers, this slide must first be drawn out, and then the rollers are left free to be freely raised upward at this end. The roller at the inner end of the frame is provided with a fast and a slow pulley, and the power is applied to this roller and the chain D, through the belt T, from the driving-shaft U.

Loosely attached to the frame A, by means of the hangers F, is the swinging frame A, which is provided with a series of small rollers, Y, corresponding in number to the larger angular rollers a. The lower ends of the pieces of yarn I are passed around these lower rollers, which serve to keep the pieces of yarn stretched, and thus cause them to move evenly, both when being made to travel endwise and when being moved back and forth with the frame. This lower frame being made intwo parts, the upper hinged part can be opened upward to allow the rollers to have the yarn applied to or removed from them.

The driving-shaft U is supported in suitable journals, as shown in Fig. 4., and opposite the center of each tub B it has a worm-gear, W, secured to it, and this worm drives the vertical crank-shaft G through the wheel J on its upper end. The crank of the shaft G is attached to the swinging frame A by means of a suitable connecting-shaft, so that when the I shaft G is made to revolve, the frame A is made to reciprocate back and forth through the dye, so as to keep it constantly stirred up. The upper end of the shaft Gis provided with a spline, and the wheel J is made vertically ad ustable thereon by means of the lever X, so that the wheel can be thrown in and out of gear with the worm at the will of the operator. Vhen the wheel and worm are in gear, the frame A is made to reciprocate; but when .they are out of gear, the rollers a Y alone are driven directly from the shaft.

Having thus described my invention, I claim- 1. The combination of a driving mechanism, a series of angular pulleys provided with 

